Home / 210,702.96-290,770.20-115,210.44

Finding the Fourth Proportional to 210,702.96, 290,770.20 and 115,210.44

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Solution

The fourth proportional to 210,702.96, 290,770.20 and 115,210.44 is: 158,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,702.96 : 290,770.20 = 115,210.44 : x
  2. Step 2: Convert to fraction form
    210,702.96/290,770.20 = 115,210.44/x
  3. Step 3: Cross multiply
    210,702.96x = 290,770.20 × 115,210.44
  4. Step 4: Simplify right side
    210,702.96x = 33,499,762,680.89
  5. Step 5: Solve for x
    x = 33,499,762,680.89/210,702.96
  6. Step 6: Final answer
    x = 158,990.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.